Disc.Turbo

Justin climbs on top of a stadium roof that is held up by air and in danger of collapse. Plus, Jimena Gascon discovers why Mexico City's Metro project has been derailed.

Justin uncovers the truth behind a landslide that wiped out a ski-jump resort in Turkey, before jetting off to Gibraltar to see an airport runway built across a road.

Would you ever believe a skyscraper can melt a car? Justin heads to London's Walkie Talkie building to unearth the science behind this building blunder.

RV builder Newmar designs their most extravagant coach for a NASCAR fan. A Colorado engineer creates a self-sufficient off-road expedition vehicle.

Richard gives $100,000 of his time, money and contacts to help rebuild Keys Customs in Key West, Florida, which was devastated by Hurricane Irma.

In Italy, a towering bridge collapses. In Connecticut, tragedy strikes a construction site. A bridge fails mid-construction in Canada's capital.

In California, catastrophe strikes one of America's most important intersections. Plus, there's a demolition disaster in Canberra, Australia.

In Arizona, a fire destroys a river crossing. In California, a concert hall causes a storm. In Ohio, a driver and her vehicle are swallowed whole.

In Sweden, tragedy strikes as a historic bridge is destroyed in seconds. A New Jersey casino is the victim of a massive disaster.

In Kansas City, stormy weather brings down the roof of a state-of-the-art stadium. In Canada, the routine renovation of a bridge goes badly.

The crew matches the two-tone paint job on the '53 Barn Door Deluxe build. They add a custom trim, a new engine, 22 windows and a custom interior.

Who Gets Number One? Dave and the crew proved they could execute Dave's production Corvette vision. But now that some have sold, they have to get them completely finished.

Dave and the team are putting the final touches on two remarkable 1953 Corvettes. Will their demanding clients be satisfied with the final product.

Henry and Sam go to Hull to meet Mandy, whose late husband was an avid collector of classic motorbikes. There are several rare Vincents and Ariels on offer.

Henry and Fuzz are in West Sussex at Dino's mega-shed. He's got buses, vintage sports cars, rare motorbikes and oodles of motoring ephemera.

Chopper Roy / Triton And Bantam. Henry and Fuzz head to 'Chopper Roy's' place. His vintage British motorbikes and a classic seventies sports coupé catch their eye.

Henry and Fuzz are down on the farm in Oxfordshire. They unearth mowers and tractors in Tim and Camilla's barns but end up buying something very different.

Richard's team work overtime to complete their first big restoration - a 1950s Alvis. Plus, they are under pressure to get their racing MGB fit for competition.

Where's All The Money? Richard must come up with a plan to raise emergency funds. And, the team enter their first race at Donnington Park, but engine problems threaten to derail the project.

Richard's business goes global after a call from an international car collector in Singapore. And, Richard helps his best friend Les fulfil a childhood dream.

Justin climbs on top of a stadium roof that is held up by air and in danger of collapse. Plus, Jimena Gascon discovers why Mexico City's Metro project has been derailed.

Justin uncovers the truth behind a landslide that wiped out a ski-jump resort in Turkey, before jetting off to Gibraltar to see an airport runway built across a road.

Would you ever believe a skyscraper can melt a car? Justin heads to London's Walkie Talkie building to unearth the science behind this building blunder.

Alicia Waddingham transports a hazardous load on heavily corrugated roads. Hibbo takes on Australia's harsh deserts and oncoming mega loads.

Jim Foody transports critical medical supplies through flood-ravaged roads. Jake Pakai hauls multimillion-dollar equipment across narrow highways.

Josh Carter hauls a monster oversized convoy. Steve Grahame transports a triple trailer load whilst battling against Mother Nature.

American Coach builds a first-class party-mobile, and a 1957 Airfloat is restored. Plus, Foretravel Motorcoach builds a $1.2 million custom motor home.

Richard is in Tampa, Florida, to help Mark Dicks's struggling bike shop from drowning in sea of junk and broken equipment. Can he and the guys revive Low Life.

Too Late To Turn Back Now. The team starts assembling panels into the shape of a car. When the chassis is done, two wild shapes are melded together for the first and last time.

.. The team passes a huge milestone in the Ridler build, as the body and chassis are merged with mock-ups of the other major elements of the car.

Dave agonizes over the colour choice for the Ridler build. The previous five winners were all yellow, but Dave decides to go in another direction.

The Ridler car's engine and transmission are married for the last time and installed, and the team moves on to the wiring and other systems.

The team fires the Ridler build for the first time, finishes an endless list of details and appointments, and loads the car for the trip to Detroit.

Henry and Sam go to Hull to meet Mandy, whose late husband was an avid collector of classic motorbikes. There are several rare Vincents and Ariels on offer.

Henry and Fuzz are in West Sussex at Dino's mega-shed. He's got buses, vintage sports cars, rare motorbikes and oodles of motoring ephemera.

Chopper Roy / Triton And Bantam. Henry and Fuzz head to 'Chopper Roy's' place. His vintage British motorbikes and a classic seventies sports coupé catch their eye.

Henry and Fuzz are down on the farm in Oxfordshire. They unearth mowers and tractors in Tim and Camilla's barns but end up buying something very different.

Mike and Elvis are determined to celebrate a dying breed, the iconic V8 engine. They've chosen a classic sports car to do it, the Mercedes SL55.

The 2002 Mercedes Benz E55 AMG is the pinnacle of luxury and supercar performance. Can Mike find profit in a neglected example as Ant tackles a major service.

Mike has upgraded this car plenty of times before, but this time he's found a major bargain. With a few minor changes, he's hoping to double the price.

Mike tracks down a stunning Mercedes SLK. But can Edd make this classic car roadworthy without blowing their small budget.

Mike wants a G Wagen - the popular German four-by-four. He finds one and Edd gives it a facelift, with a 2012 front end and rear lights. Will they land a big profit.

Mike and Elvis are determined to celebrate a dying breed, the iconic V8 engine. They've chosen a classic sports car to do it, the Mercedes SL55.

Alicia Waddingham transports a hazardous load on heavily corrugated roads. Hibbo takes on Australia's harsh deserts and oncoming mega loads.

Jim Foody transports critical medical supplies through flood-ravaged roads. Jake Pakai hauls multimillion-dollar equipment across narrow highways.

Josh Carter hauls a monster oversized convoy. Steve Grahame transports a triple trailer load whilst battling against Mother Nature.

How do they make giant floating power stations that provide power around the world? Plus, how do they fabricate the world's smallest aircraft.

How do they make batteries from brine? How do they build a tropical island from trash? And how are fragrances blended to create different types of scents.

Classic car expert Paul Cowland and builder-restorer Helen Stanley help buyers find their dream rides within their budget - from SUVs to high end sports cars.

Classic car expert Paul Cowland and builder-restorer Helen Stanley help buyers find their dream rides within their budget - from SUVs to high end sports cars.

Paul persuades Drew to buy a Triumph TR4 and he pays homage to one of his automotive heroes. The boys reinstate a stylish feature that never made it to production.

Henry and Sam are in Bodmin Moor rummaging through a collection built up over 25 years. It includes amphibious craft, motorbikes, nuts and bolts.

In Redruth, Henry and mechanic Sam are confronted with sheds filled with ramshackle contents, from Harry Potter's Anglia to a model canary-yellow Lamborghini.

Richard explores one of the world's biggest man-made engineering projects: the Kölnbrein Dam, which can hold back an incredible 200 million tonnes of water.

Derek finds himself a 1950 Ford 8N tractor. But with a cracked engine block, Derek will have to revisit his farming routes to make this implement operational.

Chad Hiltz makes an elegant one-of-a-kind coupe in his shop. He uses spare parts, recycled metal and a rusted out 1939 Studebaker Commander to build the car.

A 70s Revival. Ant has found an iconic VW Campervan that's been abandoned mid-restoration. The interior needs a full refit, plus a suspension overhaul.

In Texas, an oil refinery explodes. Flooding in Iowa destroys an important railroad crossing. What engineering mistakes caused these disasters.

Drew and Paul rescue a classic: a Vauxhall Viva. The car was extensively modified in the 1960s but after years in storage, it's well past its best.

The team fires the Ridler build for the first time, finishes an endless list of details and appointments, and loads the car for the trip to Detroit.

Mike and Elvis find and fix up a recently imported Fiat 600. It needs a lot of work, including a full repaint and an engine overhaul.

Presenter Henry Cole and motorcycle restorer Sam Lovegrove scour the UK's sheds for hidden vintage automotive treasures to fix up and sell on.

Henry and Sam are in the heart of Oxfordshire where they find rare Minis, 1970s Rollers, and a pristine rally car - but can they get her running.

At the Ridler tech test, Dave and Kev scramble to fix a transmission problem. When the show opens, they get their first chance to see the competition.

Dave and GT resurrect a farmer's 1977 Toyota Land Cruiser. Then it's love at first sight when they find a 1975 VWL-Bug 1600 that's had just one owner.

In California, a dam collapse causes chaos. In Massachusetts, the tallest library starts cracking. In Italy, a vital bridge comes crashing down.

Mike finds a BMW six-cylinder modern classic, the E46 M3, with the subframe already fixed. He challenges Ant to transform the transmission with new tech.